Extech Instruments SDL400 User Manual (English)

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10 SDL400-en-GB_V1.6 12/14

Spreadsheet data example

RS-232/USB PC Interface

For streaming of data to a PC via the RS232 Output jack, the optional 407001-USB kit (RS232 to

USB cable and driver CD) along with the 407001 software (available free at

www.extech.com/sdl400) are required.

AC Power Adaptor

This meter is normally powered by six (6) 1.5V ‘AA’ batteries. An optional 9V power adaptor is

available. When the adaptor is used, the meter is permanently powered on and the power button

will be disabled.

Battery Replacement and Disposal

When the low battery icon appears on the LCD, the batteries must be replaced. Several hours of

accurate readings are still possible in this condition; however batteries should be replaced as soon

as possible. Note that the Datalogger will not run with the low battery symbol showing.

 Remove the two (2) Phillips screws from the rear of the meter (directly above the top of the tilt

stand).

 Remove and safely place the battery compartment and screws where they will not be damaged

or lost.

 Replace the six (6) 1.5V ‘AA’ batteries observing polarity.

 Replace the battery compartment cover with the two (2) Phillips screws.

All EU users are legally bound by the Battery Ordinance to return all used batteries to

community collection points or wherever batteries / accumulators are sold!

Disposal in household trash or refuse is prohibited!

Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the

end of its lifecycle

Other Battery Safety Reminders

 Never dispose of batteries in a fire. Batteries may explode or leak.

 Never mix battery types. Always install new batteries of the same type.

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Extech Instruments SDL400 Specifications

General

Type	Environmental Meter
Data Logging	Yes
Measurement Range (Sound Level)	30 to 130 dB
Measurement Range (Light)	0 to 20, 000 Lux
Measurement Range (Lux)	0 to 20, 000 Lux
Accuracy (Sound Level)	±1.5 dB
Accuracy (Light)	±5% of reading
Accuracy (Humidity)	±3%RH
Accuracy (Lux)	±5% of reading
Resolution	0.1°F/°C, 0.1dB, 1Lux, 0.1%RH
Resolution (Sound Level)	0.1 dB
Resolution (Light)	1 Lux
Resolution (Humidity)	0.1% RH
Resolution (Lux)	1 Lux
Display	LCD
Interface	USB
Measurement Range (Humidity)	10% to 95% RH
Power Supply	4 x AAA batteries
Memory	16, 000 data points
Operating Temperature	32 to 122°F (0 to 50°C)
Power Supply (Lux)	4 x AAA batteries
Sampling Rate	1 second
Sampling Rate (Lux)	1 second